(written from a Production point of view)
Russell Bates (born 6 June 1941; age 73) is a writer who co-wrote the Animated Series episode entitled "How Sharper Than a Serpent's Tooth" with David Wise. This episode is responsible for winning the only Emmy Award ever won by a Star Trek series, the 1974-1975 Daytime Emmy in the area of "Outstanding Entertainment Children's Series." 
According to The New Voyages 2, Bates first wrote a Star Trek story while he was hospitalized in the US Air Force. While he was unsuccessful in selling the story, it got the interest of D.C. Fontana, who helped him into a Writer's Guild program for minorities (Bates is a Kiowa native American) and asked him to write for the animated series. His first attempt, "The Patient Parasites", was rejected, but appeared in the book The New Voyages 2. He retained a character he had created for that script, the American Indian crew member Dawson Walking Bear, when he wrote his second script in collaboration with Wise, "How Sharper Than a Serpent's Tooth".